Cotter-pin.



No. 69|,730. Patented 1an. 2|, |902.

R. S. PICKERING.

CUTTER PI'N.

(Application led Apr, 29, 1901.)

(Ilo Model.)

TH: Nonms PETERS do. PHoToLlmn.. wAsHmarcN. l?A c.

UNITED STATES PATENT OFFICE.

RIDGWAY S. PICKERING, OF SHARONHILL, PENNSYLVANIA.

COTTER'PIN.

SPECIFICATION forming part of Letters Patent No. 691,730, dated January21, 1902,

Application tiled April 29, 1901.

To all whom it may concern:

Be itkuown that I, RIDGWAY SPICKERING, a citizen of the United States,residing at Sharonhill,county of Delaware, and State of Pennsylvania,have invented a certain new and useful Improvement in Cotter-Pins, ofwhich the following is a specification.

My invention relates to a new and useful improvement incotter-pins, andrelates more particularly to the points of said pins,-and has for itsobject to form a point upon the pins which will enable the pins to beeasily inserted 4 through a hole and also by beveling the inner face ofthe point of each member of the bent so as to form pin, so that whenthey are togetherit will form a V-shaped notch in which to insert aninstrument to separate the points; and a further object of my inventionis to form the points in such a manner that these points can be formedby dies while the pin is in the blank form.

With these ends in view this invention consists in the details ofconstruction and combination of elements hereinafter set forth and thenspecifically designated by the claims.

In order that those skilled in the art to which this inventionappertains may understand how to make and use the same, the constructionand operation will now be described in detail, referring to theaccompanying drawings, forming a part of this specification, in which-Figure l is a side elevation of the pin inserted through a hole; Fig. 2,an edge view of the pin; Fig. 3, an end view of the pointed end of thepin; Fig. 4, an elevation of the rounded side of the pin in the blankform; Fig. 5, a side view of the blank after the points have been cut,and Fig. 6 an elevation of the fiat side of the pin in blank after thepoints have been out.

' In carrying out my invention as here embodied, A represents thecotter-pin, which is the usual eye B at the top, and before the pin isbent in the shape shown in Fig. 1 the blank is inserted between two setsof dies, which dies will form the points by one set of dies beveling offthe rounded side of the blank upon each edge, asindicated at D. Theother set of dies will operate upon the dat side of the blank at thesame time as the other dies and bevel off the ends of this iiat sideupon each edge, as indicatedat E. Thus these two sets of bevels uponeach side of the point of the end will form points, and

Serial No. 58,036. (No model-l thus present a bevel surface in alldirections' to the hole through which the pin is to be inserted, whichwill greatly` facilitate the inserting of this pin in the hole, E uponthe dat surface upon each point of the pinA will when the points arebrought together form a V-shaped notch, which will allow a pointedinstrument to be inserted between the points of the Cotter-pin for thespreading the same. f

I am aware that the points of Cotter-pins havebeen beveled for thepurpose of facilitating the inserting of the pin within the hole andalso that notches have been formed between the two members of the pinupon the end for the purpose of facilitating the spreading of the same;but these beveled surfaces and the bevels purpose of and also the notchhave always been so formed that that bevel and notch will have to bemade by milling or filing; but by forming the point of the pin asI dothe point can be formed by dies, and thus both points can be punched outinv one operation, which will greatly facilitate the manufacturing ofthe pins and also greatly cheapen the cost of manufacture, and byforming the pin as Ido it will make abetter point forinsertion through ahole, and the notch formed between the points by extending along theside the points allows for a better insertionl of a tool for spreadingthe same.

Having thus' fully described my invention, what I claim as newand usefulis v 1. As a'new article of manufacture, a cotter-pin comprising a stripof metal having flat and rounded sides, the said strip being bent onitself to form a loop with the flat portions contacting, the ends of thepin on the rounded side being beveled, the said beveled portions of` therounded side intersecting, the said flat side being also beveled fromopposite edges intersecting centrally its width, substantially asdescribed.

2. In a Cotter-pin, a strip of metal having- RIDGWAY S. PICKERING.

Witnesses:

MARY E. HAMER, L. W. MORRISON.

